【Powerful Dual Light Source】- Featuring a new 16-core LED light source, it meets your needs for powerful and bright headlights. Energy-saving COB light for easy reading or maintenance. Two light sources to meet your needs in all situations 【Telescopic Zoom & Adjustable Lighting Angle】- This headlamp can zoom flexibly, zoom out to get a focused beam for long-distance illumination, and zoom in to flood the beam for close-range illumination. Main light and COB light can be adjusted up and down to get the perfect lighting angle 【Power Bank Function】- Our rechargeable headlamps have a USB input port and a USB output port. In an emergency, you can use your headlamp as an emergency power source to charge your phone or wireless headphones. 【Safety Indicator】- This rechargeable headlamp has a built-in battery indicator and a red light on the back. The battery indicator informs you of the remaining battery life. Flashing red warning light makes you safer when running or walking at night 【Reliable Headlamp】- With an adjustable headband and lightweight design, the headlamp will not put pressure on your head even if you wear it all day. One-button control of 4 lighting modes: high/low/strobe/high (COB light), the operation is very simple. The high-strength aluminum housing makes the headlamp suitable for various extreme conditions, especially in natural disasters such as storms, floods, earthquakes, etc.